I too suffer from TMJ, on both sides, had headaches daily, almost to the point they could be called migraines, and had a constand jaw ache. My dentist said that it showed on an x-ray that I had trauma on my right side but the left felt worse. I finally broke down and went to a chiropractor, my neck looked like a backward S, he did some adjusting for a couple weeks and haven't had a jaw or headache since!! Sure wish I would have seen him a few years ago!!
Good luck!